THE TUBE-BEARING FUNGI 



363 



Boletus alveolatus. B. and C. 



The Alveolate Boletus. 



Alveolatus is from alveolus, a small hollow, referring to the pitted form of 

 the pore-surface, which is one of the characters of this species. The pileus 

 is convex, smooth, polished, usually rich crimson or maroon, sometimes varied 

 with paler yellowish 

 tints ; substance solid, 

 changing to blue on 

 being fractured or 

 bruised, three to six 

 inches broad. 



The tube - surface 

 reaches the stem prop- 

 er, undulate with un- 

 even hollows, maroon, 

 the tubes in section be- 

 ing yellow beyond their 

 dark red mouths. 



The stem is usually 

 quite long, covered 

 with depressions or pit- 

 ted dentations, with in- 

 termediate coarse net- 

 work of raised ridges, 

 red and yellow. The 

 spores are yellowish- 

 brown. I found this 

 species in the woods 

 near Gallipolis, Ohio, 

 also near Salem, Ohio. 

 The bright, color of its 

 cap will command the 

 attention of any one 

 passing near it. It has 

 been branded as a rep- 

 robate, but Captain Mc- 

 Ilvaine gives it a good 

 reputation. Found in 

 the woods, especially 

 along streams, August 

 and September. Photo- 

 graphed by Prof. H. C. 

 Beardslee. 



Figure 293. Boletus alveolatus. 



